Error "Filenames contained invalid characters" when attaching images to ticket
Summary
When I try to attach any image to any of my tickets I get an error: "Filenames contained invalid characters and could not be saved." The image filenames are valid, such as "Screenshot 2021-02-08 at 19.26.23.jpg" or "welcome remove exclamation mark.jpg".
Steps to reproduce
Ticket for instance: https://gitlab.com/ishayMuso/mm2000/-/issues/304 Try to attach an image.
Example Project
What is the current bug behavior?
When I try to attach any image to any of my tickets I get an error: "Filenames contained invalid characters and could not be saved." The image filenames are valid, such as "Screenshot 2021-02-08 at 19.26.23.jpg" or "welcome remove exclamation mark.jpg".
What is the expected correct behavior?
Images should be attached successfully.
Relevant logs and/or screenshots
See attached screenshot.
Output of checks
This bug happens on GitLab.com